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This article mainly introduces the sample code for vue-scroller to record the scroll position. Now I share it with you and give it as a reference.
Problem description:
The list page enters the details page, or switches the tab page, and then returns to the list page, hoping to switch to the previous scroll position
Solution to the problem:
Record the position before switching to other pages, and return to the position when returning to the list page. This needs to be achieved with the help of vue-router's beforeRouteEnter and beforeRouteLeave hooks.
There is also a simpler and more crude method. Add a judgment that the width and height are not zero in the vue-scroller.min.js source code. See the comments for the implementation method, which was discovered during recent code optimization.
Code part:
beforeRouteEnter(to,from,next){ if(!sessionStorage.askPositon || from.path == '/'){//当前页面刷新不需要切换位置 sessionStorage.askPositon = ''; next(); }else{ next(vm => { if(vm && vm.$refs.scrollerBottom){//通过vm实例访问this setTimeout(function () { vm.$refs.scrollerBottom.scrollTo(0, sessionStorage.askPositon, false); },0)//同步转异步操作 } }) } }, beforeRouteLeave(to,from,next){//记录离开时的位置 sessionStorage.askPositon = this.$refs.scrollerBottom && this.$refs.scrollerBottom.getPosition() && this.$refs.scrollerBottom.getPosition().top; next() },
Points to note:
1. Familiar with the api of vue-router and vue-scroller
2.beforeRouteEnter , it is impossible to access the vue instance through this, you need to use vm
3.setTimeout 0
When the version is released next week, I will post the link and you can experience the effect.
The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.
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